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//@ run-pass
//@ compile-flags: -C debug_assertions=true
//@ needs-unwind
//@ ignore-emscripten dies with an LLVM error
use std::panic;
fn main() {
macro_rules! overflow_test {
($t:ident) => (
let r = panic::catch_unwind(|| {
($t::MAX).next_power_of_two()
});
assert!(r.is_err());
let r = panic::catch_unwind(|| {
(($t::MAX >> 1) + 2).next_power_of_two()
});
assert!(r.is_err());
)
}
overflow_test!(u8);
overflow_test!(u16);
overflow_test!(u32);
overflow_test!(u64);
overflow_test!(u128);
}
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